Camp-stool.



No. 816,905 PATENTED APR. 3, 1906. G. BRIGKSON.

CAMP STOOL.

APPLICATION FILED APR.3, 1905.

W Inventor.

Attorneys.

CHARLES ERICKSON, OF BROOKLYN, NEW YORK.

CAlVlP STOOL.

are. 816,905.

Specification of Letters Patent.

Patented April 3, 1906.

Application filed April 3, 1905. Serial No. 253,599.

To all whom, it may concern:

Be it known that I, CnARLEs ERICKSON, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented a new and useful Camp-Stool, of which the following is aspecification.

This invention relates to camp-stools.

The object of the invention is to provide a camp-stool in which theparts thereof shall be so constructed and combined as to permit the samein a novel manner to be distended and held against collapsing when inuse and in which the parts may readily be collapsed or closed and foldedinto small compass when the article is to be transported.

With the above and other objects in view, as will appear as the natureof the invention is better understood, the same consists in the novelconstruction and combination of parts of a camp steel, as will behereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, andin which like characters of reference indicate corresponding parts,Figure 1 is a view in elevation, partly in section, the intermediateportion of the standard being broken away, a section of that portion ofthe stool below the median line or broken-away portion of the standardbeing taken at right angles to the seat and that portion above themedian line being taken diagonally thereto. Fig. 2 is a detail view inelevation of the standard. Fig. 3 is an inverted plan view of a portionof the seat, showing more particularly the disposition of theseat-supporting arms and legs. Fig. 4 is a detail view, in sideelevation, exhibiting the parts as they appear when folded fortransportation.

Referring to the drawings, 1 designates the standard, which ispreferably made of a length of metallic tubing and is provided at eachend witha series of pairs of cars 2 and 3, there being in this instancefour pairs of cars at each end of the standard, these corresponding tothe number of seat-supporting arms and legs employed. The two sets ofcars are so disposed relatively to each other that the legs will breakjoint or will be intercurrently disposed relatively to the arms when theparts are collapsed, as will be apparent by reference to Fig. 1. Pivotedbetween the ears 2 are the seat-supporting arms 4, which for sake ofbrevity will hereinafter be termed arms, the same being approximately U-shaped in cross-section and each having at its outer end a slot orrecess 5, that extends diagonally of its length, and its inner endformed into a pair of ears 6, which are disposed between the pair ofears 2 and held combined therewith by a rivet 7, a washer or spacer 8,placed between the ears, serving to prevent collapse under strain. Thelegs 9 are also approximately U shaped in crosssection, and each has itsinner end formed into a pair of cars 10, which are mounted between. apair of cars 3 and held combined therewith by a rivet 11, a spacer orwasher 12, disposed between the ears, serving to prevent collapse understrain. The outer end of each leg carries a pivoted foot comprising aplate 13 and an ear 14, integral therewith, the latter being disposedbetween the members of the leg and held combined therewith by a rivet15. By having the foot pivotally connected with the leg the same may beturned to the position shown in Fig. 4, and thus be out of the way whenthe stool is collapsed for the purpose of transportation, and, further,by having the foot so connected with the leg it will automaticallyadjust itself to the surface upon which it is resting, and thereby causethe stool to be solid.

Arranged within the standard is an arm and leg locking mechanismcomprising a pair of cones 16 and 17, each of which has secured to it orformed integral with it a tubular extension 18 and 19, with one ofwhich--in this instance the extension 19is rigidly connected a rod orstem 20, that projects into the extension 18, and thereby causes the twoextensions to remain in alinement and to have telescopic movementrelatively to each 0ther,the extensions and rod 20 forminga telescopicshank, by which name it will be hereinafter designated. Surrounding theshank is a coiled spring 21, the terminals of which bear against thebases 22 and 23 of the cones 16 and 17, as clearly shown in Fig. 1, andoperates normally to cause the cones to be pro j ected outward beyondthe terminals of the standard. To limit the outward movement of thecones and also to provide a means wherebythe same maybe retracted orhoused within the standard when it is desired either to distend-orcollapse the legs and arms, there is combined with each cone anoperating knob or handle 24 and 25, respectively, each having a threadedconnection with the body portion of the cones, these handles beingprojected through slots 26, formed adjacent to the terminals of thestandard. As clearly shown in Fig. 1, the cones bear directly againstthe terminals of the arms and legs, and owing to the fact that these aredisposed obliquely relatively to the standard the cones will have a firmbearing across the entire surface of the terminals, thereby operatingpositively to .hold the arms and legs either distended, as shown in Fig.1, or collapsed or folded, as shown in Fig. 4.

Combined with the arms is a seat 27, which may be made of any suitablematerial, preferably of canvas, and is provided at its corners withdownturned extensions or flanges 28, which will serve to cover theterminals of the arms, and thus render the use of the stool morecomfortable. Secured to each of the four corners of the seat and on thatside which will be the under one in use is a plate 30, which is combinedwith the seat by rivets 31. This plate is formed intermediate of itsends with a loop or band 32, in which is secured a link 33, that isdesignedto interlock with the terminal rest 5 of the arm, as clearlyshown in Fig. 1. The coaction between the loops and the recesses is suchthat accidental separation of the seat-supporting arms will be renderedimpossible, and, further, by reason of the coaction between the cones 16and the terminals of the arms the latter will always be subjected to apressure that will tend to depress their outer terminals, and thisfeature will still further accentuate the stability of the connectionbetween the loops and the recesses.

When the parts are collapsed, as shown in Fig. 4, and it be desired toset the stool up in the position shown in. F ig. 1, the two handles aremoved toward the center of the standard in the slots 26, thereby drawingthe cones out of engagement with the terminals of the arms and legs,whereupon the latter may be turn ed upward to the position shown in Fig.1, and upon the handles being released the cones will enter between thesaid terminals, and thus lock the arms and legs in position. Incombining the seat with the arms the handle 24 is depressed suflicientlyto allow the arms to be projected toward each other above the standard,whereupon the loops may readily be brought into engagement with therecesses, and as soon as the handle is released the spring 21 will exertits function and press against the inner terminals of the arms, caustheouter terminals to move toward the standard, and thereby place the seatunder requisite tension.

It will be seen from the foregoing description that although the stoolof this invention is exceedingly simple of construction it combines in aready and practical manner all of the essentials necessary for theproduction of a thoroughly eflicient device, and, moreover,

that it is light, strong, durable, and not liable to get out of repairfrom long continued use.

In order to hold the handles 2 1 and 25 in retracted position againstthe stress of the spring, the slots 26 are provided at their inner endswith lateral extensions or depressions 34, into which the handles may beturned and be held firmly locked against movement until released.

It will generally be preferred to form the pairs of ears 2 and 3integral with the standard; but, if preferred, they may be made asseparate elements and be suitably combined therewith, as by being brazedthereto, or, if preferred, the standard may be made of malleablecast-iron with the ears integral therewith.

While it will generally be preferred to make the arms and legs U-shapedin cross-section, as described, it is to be understoodthat the inventionis not to be limited to this particular construction, and these partsmay be made tubular, if preferred, and still be within its scope.

Having thus described the invention, what is claimed is 1. A camp-stoolembodying a standard, arms and legs pivotally connected therewith, andlocking mechanism adapted to be projected between the inner terminals ofthe arms and legs to hold them either in open or closed position.

2. A camp-stool embodying a standard, arms and legs pivotally connectedtherewith and spring-pressed locking mechanism adapted to be projectedbetween the terminals of the arms and legs to hold them in either openor closed position.

3. A camp-stool embodying a standard, a plurality of arms and legspivotally connected with the respective terminals thereof, and a pair ofspring-pressed cones adapted to engage the terminals of the arms andlegs.

4. A camp-stool embodying a tubular standard, arms and legs pivotallyconnected therewith, a pair of cones engaging respectively with theinner terminals of the arms and legs, a telescopic shank connecting thecones, a coiled spring surrounding the shank and engaging the cones tohold them in engagement with the terminals of the arms and legs, andmeans for retracting the cones to permit either opening or closing ofthe arms and legs.

5. A camp-stool embodying a tubular standard having its terminalsprovided with pairs of spaced ears, arms and legs positioned between therespective ears, and a pair of spring-pressed cones carried by thestandard and engaging the terminals of the arms and 6. A camp-stoolembodying a standard, a plurality of arms and legs pivotally connectedwith the respective terminals thereof, spring-pressed locking elementsadapted to '[O spring-pressed locking devices adapted to engage theterminals of the arms and legs when in either open or closed osition.

In testimony that I o aim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

CHARLES ERIGKSOW.

Witnesses:

ADOLPH W. OHRIsTIANsoN, CARL W. BERG.

